Door-sill



(No Model.)

W. S. CARLTON.

DOOR SILL.

Patented June 14, 1887'.

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UNITED STATES PATENT OFFICE.

WINFIELD S. CARLTON, OF BIG .RUN, PENNSYLVANIA.

DOOR-SILL...

SPECIFICATION forming, part of Letters Patent No. 364,896, dated June 14, 1887.

4 Application filed December 6, 1886. Serial No. 220, 58. (No model.)

To all whom it may concern:

Be it known that I, WINFIELD S. CARLTON, a citizen of the United States, residing at Big Run, in the county of Jefferson and State of Pennsylvania, have invented a new and useful Improvement in Door-Sills, of which the following is a specification.

My invention relates to an improvement in door-sills, which has for its object the providing of a door-sill that can be entirely removed from the doorway for any purpose that may be desired and that is not fastened to the floor by eitherscrews or nails. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan view representing my sill in position and complete. Fig. 2 is a side view representing my sill with the key removed. Figs. 3 and 4 represent difierent views of the key.

The sill B is made in a single piece and of a length and shape to correspond to the doorcasing to which it is applied. Out in the inner edge of this sill, preferably at its center, is the dovetail-shaped opening 0, in which the key A is to be placed, for the purpose of fastening the sill to the floor. When the key is removed, the sill can be readily removed, as it is free from the floorin every respect. This key A is shaped as shown in Figs. 3 and 4,

. and consists'ol' the dovetail-shaped head, which sition. When it is desired to remove the sill,

it is only necessaryto insert an instrument under that edge of the key which comes flush with the inner edge of the sill and raise the key upward.

Having thus described my invention, I claim- The combination of the door'sill having a recess, wider at its inner than its outer end, made in its edge, at or near its center, with a locking-pin, A, providedwith an enlarged head which corresponds in shape to the re cess in the edge of the sill, and havinga shank which fits in the recess D in the floor, the pin serving to prevent the sill from being moved backward, substantially as shown.

Witness my hand this 4th day of December, 1886. r

\VINFIELD S. CARLTON.

Witnesses:

W. '0. PENTZ, H. L. KNAU. 

